Juneau Borough and Northern Admiralty Island Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Special Statement
Issued: 4:49 PM AKDT Jun. 26, 2017 – National Weather Service

... Glacier dam release into Mendenhall Lake...

Hydrographs along with other monitoring equipment indicate a
Glacier dam release ongoing on the Mendenhall Lake/river from
suicide basin. At this time there is no threat of flooding as the
lake level at the start of the event was low. The lake is forecast
to remain below bankfull cresting early Tue morning around 5.5
feet but, there is inherent uncertainty in initial Glacial Lake
volume that can result in varying crest height and timing.

Please stay tuned to NOAA Weather Radio or you favorite local
weather news source for updates on this situation.


449 PM akdt Mon Jun 26 2017

... Glacier dam release into Mendenhall Lake...

Hydrographs along with other monitoring equipment indicate a
Glacier dam release ongoing on the Mendenhall Lake/river from
suicide basin. At this time there is no threat of flooding as the
lake level at the start of the event was low. The lake is forecast
to remain below bankfull cresting early Tue morning around 5.5
feet but, there is inherent uncertainty in initial Glacial Lake
volume that can result in varying crest height and timing.

Please stay tuned to NOAA Weather Radio or you favorite local
weather news source for updates on this situation.


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